SU1244381A1 - Gear-type hydraulic machine - Google Patents

Description

The invention relates to mechanical engineering, in particular to gear hydraulic machines.

The purpose of the invention is to increase the volumetric efficiency.

FIG. 1 shows a gear hydromachine, - Longitudinal section; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 - one of the options for installing plates in a reversible hydraulic machine; in fig. 5 is one of the embodiments of the low pressure zone.

External gear gear hydromachine contains external gear gears 1, placed in bores 2 of case 3, pins 4 of which are installed in slide bearings 5, end compensators 6, working surfaces 7 of which are matched with ends of 8 gears 1, supply channels 9 and outlet 10, plates 11 with sealing elements 12, with recesses 13 on the side of the supply channel 9 in the housing 3, and longitudinal grooves 14 in the sliding bearings 5, the plates 11 being installed in the recesses 13 of the housing 3 and matching with the non-working surface There are 15 face compensators, and the longitudinal grooves 14 in length are made smaller than the axial length of the bearings 5 of the slide.

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five

Gear hydromachine in pump mode works as follows.

When moving gears 1, the working fluid is captured by the teeth of gears 1 and in the interdental cavities is transferred from the supply channel 9 to the discharge channel 10 of the working fluid. At the same time, the high-pressure working fluid fills the cavities formed by the surfaces of the bores 2, pins 4 and longitudinal grooves 14 in the pins 4, providing lubrication of the sliding bearings 5, as well as improving the heat dissipation of the sliding surfaces of the pins 4 and sliding bearings 5. At the same time, the installation of plates 11 with sealing elements 12 eliminates the flow of working fluid from the cavity of the outlet 10 into the cavity of the inlet 9 over the existing gaps. In the gear hydraulic machine with reverse rotation of the drive shaft of the plate 11 should be installed from the side of the channel for supplying 9 working fluid, and from the channel of the outlet 10 of the working fluid. In addition, the gaps between the sealing plate 11 and the face compensator 6 can be sealed by installing the sealing element 12 in the grooves of the front element 6, and preliminary preload is achieved by installing an additional elastic element between the cover of the body 3 and the plate 11.

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Compiled by V. Sharypov Tehred I. VeresKorrektor S. Cherni

Circulation 586 Subscription

VNIIPI USSR State Office

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

FIG. five

Claims (1)

HYDRAULIC HYDRAULIC MACHINE of external gearing, containing gears of external gearing, located in the bores of the housing, the trunnions of which are installed in the plain bearings, end compensators, the working surfaces of which are interfaced with the ends of the gears, and the channels for supplying and discharging the working fluid, characterized in that, for the purpose of to increase the volumetric efficiency, it is equipped with plates with sealing elements, recesses are made in the housing on the side of the supply channel, longitudinal grooves are made in sliding bearings, and the plates are installed us recesses in the housing and interfaced with the trailing surface of end joints and the longitudinal grooves formed along the length less than the axial length of the sliding bearings. fs / g: /